What could be a third quantum number of a 2p³ electron in phosphorus, 1s²2s²2p⁶3s²3p³? A: mI = 3
B: mI = -2
C: mI = -1
D: mI = 2

= 2. ?

Explanation:

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

10 years is the answer